Chances are you or him would have noticed gonorrhea, is shows symptoms in most men. And most STD's are not transfered from a singled contact from what I have read on the Dr's form.
Gonorrhea of the throat does not really show symptoms.
I can not give you a percentage but it is a low risk encounter. If you want to test you can have a throat swab done.
So..say if he did have gonnorhea....how high would the precentage be for me to get it orally... what are some symptoms?
Chances are not that great, STD's do not live in the throat well and most if you do get do not show symptoms.
You could get gonorrhea, syphillis or herpes. I have read that throat gonorrhea often clears up on it's own.